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Autres articles (75)

  • Submit enhancements and plugins

    13 avril 2011

    If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
    You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone.

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (6270)

  • ffmpage win7 screen record cursor is not normal

    5 avril 2017, par Wesley

    I hit a problem when recording screen on window 7 using ffmpeg.

    Snapshot here :
    enter image description here

    So, you guys see the big red point is recorded mouse cursor.
    I am using PPT default pencil, so, actually, cursor is a very small point.
    But it becomes so big when play.

    Command I use :

    ffmpeg.exe -y -rtbufsize 500M -f gdigrab -framerate 5  -draw_mouse 1 -i desktop -f dshow -i audio=%s -af "highpass=f=200, lowpass=f=3000" -c:v libx264 -r 5 -preset medium -tune zerolatency -crf 35 -pix_fmt yuv420p -c:a libvo_aacenc -ac 2 -b:a 48k  -fs 50M  -movflags +faststart

    Anyone hit this before ?

    Thanks.

    Wesley

  • Optimize ffmpeg stereo splitting and broadcasting

    12 avril 2016, par Ngoral

    I recieve an rtmp-input with a video and a stereo audio. I need to split audio and send two videos with the left channel and the right channel on different adresses. I have such a command :

    ffmpeg  -r 25 -loop 1 -i background.png \
    
-rtbufsize 2000M -i rtmp://stereoinput \
    
-filter_complex "[1:v][0:v]overlay[video];[video]split[video][video2];[1:a]channelsplit[aleft][aright]" \
    
-map [video] -map [aleft]  -c:v libx264 -minrate 1000k -maxrate 1500k -b:v 1300k -bufsize 1000k \
    
-pix_fmt yuv420p -r 25 -g 100 -tune zerolatency -preset ultrafast \
    
-c:a libmp3lame -ar 44100 -y -f flv rtmp://out_left \
    
-map [video2] -map [aright] -c:v libx264 -minrate 1000k -maxrate 1500k -b:v 1300k -bufsize 1000k \
    
-pix_fmt yuv420p -r 25 -g 100 -tune zerolatency -preset ultrafast \
    
-c:a libmp3lame -ar 44100 -y -f flv rtmp://out_right

    But it performs slow : it outputs only 20 fps. I encode on azure VPS with a 4 GB RAM and 4 Cores and has never thought it could had a problem like this. It encodes one stream perfectly.

    Do you have any ideas how to make it faster ?
    For,example I also don’t like that I have to encode the same videostream twice. I can’t afford two commands cause I have to see whole output of the command.

  • Optimize ffmpeg stereo splitting end broadcasting

    11 avril 2016, par Ngoral

    I recieve an rtmp-input with a video and a stereo audio. I need to split audio and send two videos with the left channel and the right channel on different adresses. I have such a command :

    ffmpeg  -r 25 -loop 1 -i background.png \
    
-rtbufsize 2000M -i rtmp://stereoinput \
    
-filter_complex "[1:v][0:v]overlay[video];[video]split[video][video2];[1:a]channelsplit[aleft][aright]" \
    
-map [video] -map [aleft]  -c:v libx264 -minrate 1000k -maxrate 1500k -b:v 1300k -bufsize 1000k \
    
-pix_fmt yuv420p -r 25 -g 100 -tune zerolatency -preset ultrafast \
    
-c:a libmp3lame -ar 44100 -y -f flv rtmp://out_left \
    
-map [video2] -map [aright] -c:v libx264 -minrate 1000k -maxrate 1500k -b:v 1300k -bufsize 1000k \
    
-pix_fmt yuv420p -r 25 -g 100 -tune zerolatency -preset ultrafast \
    
-c:a libmp3lame -ar 44100 -y -f flv rtmp://out_right

    But it performs slow : it outputs only 20 fps. I encode on azure VPS with a 4 GB RAM and 4 Cores and has never thought it could had a problem like this. It encodes one stream perfectly.

    Do you have any ideas how to make it faster ?
    For,example I also don’t like that I have to encode the same videostream twice. I can’t afford two commands cause I have to see whole output of the command.

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